Coyote Den
Coyote Den is an earth dam located in Sheridan County, Wyoming, built in 1965. It carries a Low hazard potential classification and has a fair condition assessment.
About Coyote Den
The primary purpose of Coyote Den is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Triple Diamond Land & Cattle Llc (private). It impounds the Coyote Den Draw near Unnamed Road.
The dam stands 31 feet tall and stretches 605 feet across, creates a reservoir covering 4 acres, and has a maximum storage capacity of 51 acre-feet. Completed in 1965, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 07/29/2025.
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Location
| State | Wyoming |
| County | Sheridan |
| Nearest City | Unnamed Road |
| River/Stream | Coyote Den Draw |
| Coordinates | 44.95020, -106.80000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 31 ft |
| Dam Height | 31 ft |
| Dam Length | 605 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 51 acre-ft |
| Max Storage | 51 acre-ft |
| Normal Storage | 34 acre-ft |
| Surface Area | 4 acres |
| Max Discharge | 1,470 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | TRIPLE DIAMOND LAND & CATTLE LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 07/29/2025 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY02495 |
| Federal ID | WY02495 |
| More Info | State Dam Safety Program |